AWS SDK Version 3 for .NET
API Reference

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The Select operation returns a set of attributes for ItemNames that match the select expression. Select is similar to the standard SQL SELECT statement.

The total size of the response cannot exceed 1 MB in total size. Amazon SimpleDB automatically adjusts the number of items returned per page to enforce this limit. For example, if the client asks to retrieve 2500 items, but each individual item is 10 kB in size, the system returns 100 items and an appropriate NextToken so the client can access the next page of results.

For information on how to construct select expressions, see Using Select to Create Amazon SimpleDB Queries in the Developer Guide.


For .NET Core and PCL this operation is only available in asynchronous form. Please refer to SelectAsync.

Namespace: Amazon.SimpleDB
Assembly: AWSSDK.SimpleDB.dll
Version: 3.x.y.z


public virtual SelectResponse Select(
         SelectRequest request
Type: Amazon.SimpleDB.Model.SelectRequest

Container for the necessary parameters to execute the Select service method.

Return Value
The response from the Select service method, as returned by SimpleDB.


InvalidNextTokenException The specified NextToken is not valid.
InvalidNumberPredicatesException Too many predicates exist in the query expression.
InvalidNumberValueTestsException Too many predicates exist in the query expression.
InvalidParameterValueException The value for a parameter is invalid.
InvalidQueryExpressionException The specified query expression syntax is not valid.
MissingParameterException The request must contain the specified missing parameter.
NoSuchDomainException The specified domain does not exist.
RequestTimeoutException A timeout occurred when attempting to query the specified domain with specified query expression.
TooManyRequestedAttributesException Too many attributes requested.

Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms